Radio Waves Multiple Choice Questions (MCQ) PDF Download

MCQ 1: As compared to sound waves the frequency of radio waves is

1. lower
2. higher
3. equal
4. may be higher or lower

MCQ 2: If frequency of modulated wave is less than frequency of carrier wave, then input signal is

1. negative
2. positive
3. zero
4. infinite

MCQ 3: At the end of communication system, the signal is converted from radio to

1. sound
2. mechanical energy
3. kinetic energy
4. potential energy

MCQ 4: Amplitude of modulated wave is in phase with

1. output
2. system
3. frequency
4. signal

MCQ 5: Variation in amplitude or frequency of carrier wave is called

1. amplitude modulation
2. frequency modulation
3. modulation
4. bandwidth